Hitterman, please do not present guesses as fact. You cannot be 'sure' about this as you have no access to any data that you would be able to back it up with.
There is no massive amount of cash that is lining the pockets of any admin here, the money made off ads goes into the running costs of the site, and while I cannot give you exact figures, profit is negligible at best.
For an indicator of how inaccurate that website is, a (small) website I run that has no ads on it is said to earn 23 cents a day from ad revenue, when it is obviously 0 cents.
I've removed the poll for being pathetic.